i have a 8.4 and a 10.5 skoop and i am very very pleased with them.
Very stable kites with excellent performance. As for materials, they are doing fine up to now (i m trying to forget the whole i have on my 10.5 from a friend's cigarette...!)
Airblasts are supposed to be as good this year - i havent tried them. A friend that tried one lately said it a bit less powerfull than takoons.